Headband



FIG. 1 is a front elevational view of a headband showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left end elevational view thereof;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a side elevational view thereof; and,

FIG. 6 is an opposite side elevational view thereof.

The broken line showing of the word "Logo" in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a headband, as shown and described. 